DOCSLIB.ORG

Sifonoforos (Cnidaria, Hydrozoa) De Aguas Superficiales Alrededor De La Isla Santa Clara, Durante Septiembre Y Noviembre Del 2007

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Sifonoforos (Cnidaria, Hydrozoa) De Aguas Superficiales Alrededor De La Isla Santa Clara, Durante Septiembre Y Noviembre Del 2007 ACTA OCEANOGRÁFICA DEL PACÍFICO. VOL. 17, N° 1, 2012 SIFONOFOROS (CNIDARIA, HYDROZOA) DE AGUAS SUPERFICIALES ALREDEDOR DE LA ISLA SANTA CLARA, DURANTE SEPTIEMBRE Y NOVIEMBRE DEL 2007 Por. Carlos Andrade1 RESUMEN Se analizaron los sifonóforos colectados en las muestras superficiales de zooplancton alrededor de la Isla Santa Clara durante septiembre y noviembre de 2007, identificándose 15 especies de sifonóforos del suborden Calycophorae y una especie del suborden Cystonectae, todos ellos registrados por primera vez para aguas tropicales al rededor de la Isla Santa Clara. Las especies más abundantes en la fase de flujo fueron Muggiacea atlantica (15.3%), Chelophyes appendiculata (13.3%) y en reflujo fueron Chelophyes appendiculata con 22.6%, Lensia hotspur con 15.5%, Diphyes dispar (11%) y Lensia multicristata con 10.9%. Las especies restantes fueron escasas y su abundancia relativa fue inferior al 8%. Palabras claves: sifonóforos, zooplancton, abundancia, Isla Santa Clara, biomasa. ABSTRACT We analyzed the collected siphonophores in surface samples of zooplankton around the island of Santa Clara in september and november 2007, identifying 15 species of the suborder Calycophorae and one species of suborder Cystonectae, all recorded for the first time in tropical waters around of the island of Santa Clara. The most abundant species in the flow phase were Muggiacea atlantica (15.3%), Chelophyes appendiculata (13.3%) and reflux were Chelophyes appendiculata with 22.6% with 15.5% Lensia hotspur, Diphyes dispar (11%) and Lensia multicristata with 10.9%. The remaining species were scarce and their relative abundance was less than 8%. Key words: siphonophores, zooplankton, abundance, Santa Clara Island, biomass. (1) Instituto Oceanográfico de la Armada. Casilla 5940. Av. 25 de Julio vía Puerto Marítimo, Base Naval Sur Guayaquil, Ecuador. Email: [email protected] 139 Sifonoforos (Cnidaria, Hydrozoa) de aguas superficiales …. Carlos Andrade INTRODUCCIÓN distintos y funcionalmente especializados. Se distinguen de los otros hydrozoa por presentar El conocimiento del plancton de la Isla Santa los dos estadios, polipoides y medusoides, en la Clara es extraordinariamente reciente y se misma colonia sin alternancia de generaciones limita a algunas colectas de organismos (Pugh 1996). planctónicos realizadas en monitoreo en los últimos diez años. Viven desde pocos meses hasta más de 10 años (Pugh 1996). Son bioindicadores de las Los sifonóforos constituyen uno de los grupos condiciones hidrológicas asociadas a las más importantes dentro de las poblaciones principales regiones climáticas y masas de agua planctónicas al formar parte de la cadena de (Alvariño 1981, Véliz 1981, Thibault-Botha et alimentación dentro del segundo nivel trófico, al. 2004) y establecen asociaciones simbióticas algunas de las especies más grandes se muy importantes con gran variedad de alimentan de peces (Trogouboff, 1957). organismos hasta relaciones de mutualismo y parasitismo (Pugh 1996). Los estudios del zooplancton e ictioplancton alrededor de la isla son escasos y esporádicos. En general los sifonóforos se distribuyen en Cajas et al., (1997 a-b-c y 1998), realizaron todos los océanos, mares y bahía, a lo largo de estudios del fitoplancton y zooplancton en el la columna de agua hasta los 4500m de entorno de la Isla. profundidad, aunque cada especie puede habitar intervalos de profundidad diferentes, Ortega y Calderón (1997), realizaron estudios y estando restringidas algunas a aguas cálidas reportaron huevos y larvas de peces en la zona superficiales (Pugh 1996). La mayoría de las adyacente de la Isla Santa Clara, durante junio especies habita el cinturón trópico-ecuatorial; hasta agosto 1997. una bución, y sólo un número limitado es exclusivo de altas latitudes (Alvariño 1981). Jiménez (1997), Cevallos (2006), determinó la Existen algunas especies con afinidades por abundancia de los principales grupos aguas neríticas costera, pero siempre son zooplanctónicas en la Isla Santa Clara. Sin encontradas en aguas donde la salinidad no es embargo, es preciso determinar las especies muy diferentes a la del agua de mar. Entre planctónicas presentes en sus aguas para tanto, la mayoría es típicamente oceánica (Pugh conocer la biodiversidad acuática de la zona. 1996). Por esta razón se ha considerado el estudio de los sifonóforos, por ser uno de los componentes Los sifonóforos pueden estar directamente rela- importantes del plancton gelatinoso, oceánico cionados con las zonas de frente (estacionales e de aguas cálidas y tropicales. intermitente) (Grahan et al. 2001). Y debido a sus características es probable que sean parte Los sifonóforos fueron descritos por primera del grupo de especies que se benefician con vez a fines del siglo XVII. Sus representantes esos eventos. poseen el mayor grado de polimorfismo y especialización funcional y una compleja A pesar de la existencia de información organización colonial (Dunn 2005b). Podemos relevante sobre sifonóforos (Gasca 2002), la definirlos biológicamente como colonias mayor parte de ésta se relaciona con la formadas por zooides asexuados genéti- taxonomía, mientras que muy pocos estudios camente idénticos, pero estructuralmente fueron relacionados sobre la ecología, 140 ACTA OCEANOGRÁFICA DEL PACÍFICO. VOL. 17, N° 1, 2012 desarrollo y organización de las colonias de la Isla Puná, es el principal estuario del (Haddock 2004). Pacífico Sudeste, componente hidrográfico de alta productividad biológica (Stevenson, 1981), La diversidad de especies en el océano cambia influenciada por la corriente de Humboldt en con la latitud, la longitud y la profundidad, diferentes intensidad de acuerdo a la época del pudiendo seguir determinados patrones que son año, dicha zona es considerada reserva conocidos para pocos grupos de invertebrados biológica y punto estratégico que sustenta las y para ciertas regiones de los océanos, pesquerías industriales y artesanales, en un área generalmente fuera de los trópicos (Witman & cuyo promedio de profundidad oscila entre 6 a Roy 2009). 20 metros correspondiente a la Ecoregión Marina Guayaquil y región tumbesina, la isla La presente investigación tiene como objetivo Santa Clara y sus alrededores constituye unos determinar la composición específica de los de los refugios más importantes de la costa sifonóforos colectados en aguas superficiales ecuatoriana por albergar grandes concen- entorno a la Isla Santa Clara y que permitan traciones de aves marinas, principalmente aportar con nuevos conocimiento de la fragatas, pelícanos y piqueros patas azules, diversidad planctónica en esta reserva además el refugio fue designado como humedal biológica. Ramsar en el año 2002 por desempeñar un papel primordial como indicador de calidad ÁREA DE ESTUDIO ecológica y bilógica de la Isla ECOLAP y MAE. 2007. (Figura1). La isla Santa Clara, también denominada como Isla del Muerto, (3º10’13’’ S. y 80º26’11’’ W), El estudio se realizó en 11 estaciones de está ubicada en la parte central del Golfo de monitoreo, realizados en los meses de Guayaquil, aproximadamente a unos 45 Km. al septiembre y noviembre del 2007 en la zona oeste de Puerto Bolívar y a 25 Km. al suroeste adyacente a la Isla Santa Clara. Figura.- 1 Ubicación Geográfica de las estaciones de monitoreo en la Isla Santa Clara, durante los meses de septiembre y noviembre del 2007. 141 Sifonoforos (Cnidaria, Hydrozoa) de aguas superficiales …. Carlos Andrade MATERIALES Y MÉTODOS RESULTADOS. Las condiciones térmicas y salinas en el área de Los resultados del presente estudio se basaron estudio fueron muy homogénea, observándose en el análisis de las densidades poblacionales para el mes de septiembre una temperatura de los sifonóforos colectados de las muestras media de 22.02ºC y 33.17 ups, mientras para el tomadas entre septiembre y noviembre del mes de noviembre se reportó una temperatura 2007. de 23.63ºC y salinidad de 33.7ups. En las muestras analizadas se identificaron 15 Los arrastres superficiales se los realizaron especies de sifonóforos, todas pertenecientes al durante 5 minutos a una velocidad de 2 nudos a suborden Calycophorae y una especie del bordo de una embarcación de fibra con motor suborden Cystonectae. fuera de borda de 75 HP. Abundancia relativa de las especies de Todas las muestras biológicas fueron obtenidas Sifonóforos durante las fases de flujo y con red Cónica Simple (WP-2) con apertura de reflujo, durante septiembre y noviembre de malla de 335µ y diámetro de la boca de red de 2007. 0,30m. El volumen de agua filtrada se lo En forma general en toda el área de estudio se obtuvo siguiendo las fórmulas establecidas por determinó cuatro especies dominantes en fase Boltovskoy 1981, los datos obtenidos fueron de reflujo, Chelophyes appendiculata (22.6%), extrapolados a (100m3)-1. Lensia hotspur (16%), Diphyes dispar (11.1%) Las muestras colectadas fueron tratadas con y Lensia multicristata con 10.9%. Mientras en cloruro de magnesio como narcotizantes de los fase de flujo se determinaron dos especies organismos gelatinosos y luego fijados con dominantes, Muggiacea atlántica (15.3%), formalina al 4% y neutralizado con bórax Chelophyes appendiculata (13.3%), Sin (Boltovskoy, 1981). embargo para el mes de noviembre en fase de flujo se determinó tres especies dominantes, Para la identificación taxonómica de los Diphyes dispar (33.5%), Sphaeronectes sifonóforos se siguió las claves de Boltovskoy, gracilis (16.4%) y Lensia subtilis con 10.57% 1981, Tregouboff, G. & M. Rose (1957); Pugh. de su abundancia. En fase de reflujo se reportó (1999), Totton
Load more

Recommended publications
  • Diversity and Community Structure of Pelagic Cnidarians in the Celebes and Sulu Seas, Southeast Asian Tropical Marginal Seas
    Deep-Sea Research I 100 (2015) 54–63 Contents lists available at ScienceDirect Deep-Sea Research I journal homepage: www.elsevier.com/locate/dsri Diversity and community structure of pelagic cnidarians in the Celebes and Sulu Seas, southeast Asian tropical marginal seas Mary M. Grossmann a,n, Jun Nishikawa b, Dhugal J. Lindsay c a Okinawa Institute of Science and Technology Graduate University (OIST), Tancha 1919-1, Onna-son, Okinawa 904-0495, Japan b Tokai University, 3-20-1, Orido, Shimizu, Shizuoka 424-8610, Japan c Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka 237-0061, Japan article info abstract Article history: The Sulu Sea is a semi-isolated, marginal basin surrounded by high sills that greatly reduce water inflow Received 13 September 2014 at mesopelagic depths. For this reason, the entire water column below 400 m is stable and homogeneous Received in revised form with respect to salinity (ca. 34.00) and temperature (ca. 10 1C). The neighbouring Celebes Sea is more 19 January 2015 open, and highly influenced by Pacific waters at comparable depths. The abundance, diversity, and Accepted 1 February 2015 community structure of pelagic cnidarians was investigated in both seas in February 2000. Cnidarian Available online 19 February 2015 abundance was similar in both sampling locations, but species diversity was lower in the Sulu Sea, Keywords: especially at mesopelagic depths. At the surface, the cnidarian community was similar in both Tropical marginal seas, but, at depth, community structure was dependent first on sampling location Marginal sea and then on depth within each Sea. Cnidarians showed different patterns of dominance at the two Sill sampling locations, with Sulu Sea communities often dominated by species that are rare elsewhere in Pelagic cnidarians fi Community structure the Indo-Paci c.
    [Show full text]
  • The Evolution of Siphonophore Tentilla for Specialized Prey Capture in the Open Ocean
    The evolution of siphonophore tentilla for specialized prey capture in the open ocean Alejandro Damian-Serranoa,1, Steven H. D. Haddockb,c, and Casey W. Dunna aDepartment of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520; bResearch Division, Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039; and cEcology and Evolutionary Biology, University of California, Santa Cruz, CA 95064 Edited by Jeremy B. C. Jackson, American Museum of Natural History, New York, NY, and approved December 11, 2020 (received for review April 7, 2020) Predator specialization has often been considered an evolutionary makes them an ideal system to study the relationships between “dead end” due to the constraints associated with the evolution of functional traits and prey specialization. Like a head of coral, a si- morphological and functional optimizations throughout the organ- phonophore is a colony bearing many feeding polyps (Fig. 1). Each ism. However, in some predators, these changes are localized in sep- feeding polyp has a single tentacle, which branches into a series of arate structures dedicated to prey capture. One of the most extreme tentilla. Like other cnidarians, siphonophores capture prey with cases of this modularity can be observed in siphonophores, a clade of nematocysts, harpoon-like stinging capsules borne within special- pelagic colonial cnidarians that use tentilla (tentacle side branches ized cells known as cnidocytes. Unlike the prey-capture apparatus of armed with nematocysts) exclusively for prey capture. Here we study most other cnidarians, siphonophore tentacles carry their cnidocytes how siphonophore specialists and generalists evolve, and what mor- in extremely complex and organized batteries (3), which are located phological changes are associated with these transitions.
    [Show full text]
  • First Record of Beaching Events for a Calycophoran Siphonophore: Abylopsis Tetragona (Otto, 1823) at the Strait of Gibraltar
    Marine Biodiversity https://doi.org/10.1007/s12526-018-0926-1 SHORT COMMUNICATION First record of beaching events for a caLycophoran siphonophore: Abylopsis tetragona (Otto, 1823) at the Strait of GibraLtar Elena Guerrero1 & Karen Kienberger2 & Ana ViLLaescusa 3 & Josep-Maria GiLi1 & GabrieL Navarro2 & Laura Prieto 2 Received: 26 March 2018 / Revised: 2 August 2018 / Accepted: 8 October 2018 # Senckenberg GeseLLschaft für Naturforschung 2018 Abstract Two beaching events of the calycophoran siphonophore Abylopsis tetragona (Otto, 1823) were observed in two different areas of the Strait of Gibraltar during the cold season. The first was discovered on November 2014, on Getares Beach (Algeciras Bay, Mediterranean part of the Strait of Gibraltar), where more than 700 colonies were found deposited along the tideline. The second event was discovered on January 2015, on Paloma Baja Beach (Tarifa, Atlantic part of the Strait of Gibraltar) where an average density of 170 colonies m−2 was spread along the seashore. Both events seemed to be promoted by strong easterly winds, preceded by upwelling episodes that may have concentrated high densities of the siphonophore in superficial layers. This study represents the first report of a calycophoran siphonophore mass stranding. The records were made thanks to citizen science and jellyfish outreach at secondary schools (PERSEUS@school initiative), illustrating the importance of citizen science projects in observing natural phenomena. We consider the monitoring and recording of cnidarian stranding events especially important in highly productive and biologically active areas such as the Strait of Gibraltar. Keywords Mass stranding . Gelatinous zooplankton . Citizen science . Outreach . Secondary schools Introduction abundant epipelagic siphonophore inhabitant of temperate and warm waters of the Atlantic, Pacific and Indican oceans Siphonophores are long pelagic colonial hydrozoans and the Mediterranean Sea (Alvariño 1971; Mapstone 2014).
    [Show full text]
  • Jennifer E. Purcell.Pdf
    Jellyfish Blooms: New Problems and Solutions Developments in Hydrobiology 212 Series editor K. Martens For other titles published in this series, go to www.springer.com/series/5842 Jellyfish Blooms: New Problems and Solutions Editors Jennifer E. Purcell1,2 & Dror L. Angel3 1Western Washington University, Shannon Point Marine Center, 1900 Shannon Point Rd, Anacortes, WA 98221, USA 2University College Cork, Coastal and Marine Resources Centre, Naval Base, Haulbowline Island, Cobh, Co. Cork, Ireland 3Department of Maritime Civilizations, Leon Recanati Institute of Maritime Studies, Haifa University, Mt Carmel, Haifa 31905, Israel Previously published in Hydrobiologia, Volume 645, 2010 123 Editors Jennifer E. Purcell Dror L. Angel Western Washington University, Department of Maritime Civilizations, Shannon Point Marine Center, Leon Recanati Institute of Maritime 1900 Shannon Point Rd, Studies, Haifa University, Anacortes, WA 98221, Mt Carmel, Haifa 31905, USA; Israel University College Cork, Coastal and Marine Resources Centre, Naval Base, Haulbowline Island, Cobh, Co. Cork, Ireland ISBN 978-90-481-9540-4 Springer Dordrecht Heidelberg London New York Library of Congress Control Number: 2010928696 © Springer Science+Business Media B.V. 2010 No part of this work may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, microfilming, recording or otherwise, without written permission from the Publisher, with the exception of any material supplied specifically for the purpose of being entered and executed on a computer system, for exclusive use by the purchaser of the work. Cover illustration: A bloom of Pelagia noctiluca jellyfish off the coast of Galicia, Spain. Photo: Alejandro Olariaga. Printed on acid-free paper.
    [Show full text]
  • Cnidaria:Hydrozoa)
    Dev Genes Evol (2006) 216:743–754 DOI 10.1007/s00427-006-0101-8 ORIGINAL ARTICLE The evolution of colony-level development in the Siphonophora (Cnidaria:Hydrozoa) Casey W. Dunn & Günter P. Wagner Received: 17 April 2006 /Accepted: 5 July 2006 / Published online: 16 September 2006 # Springer-Verlag 2006 Abstract Evolutionary developmental biology has focused other zooids from a single bud) is a synapomorphy of the almost exclusively on multicellular organisms, but there are Codonophora. The origin of probud subdivision is associated other relevant levels of biological organization that have with the origin of cormidia as integrated units of colony remained largely neglected. Animal colonies are made up organization, and may have allowed for greater morpholog- of multiple physiologically integrated and genetically ical and ecological diversification in the Codonophora identical units called zooids that are each homologous to relative to the Cystonectae. It is also found that symmetry solitary, free-living animals. Siphonophores, a group of is labile in siphonophores, with multiple gains and/or losses pelagic hydrozoans (Cnidaria), have the most complex of directional asymmetry in the group. This descriptive work colony-level organization of all animals. Here the colony- will enable future mechanistic and molecular studies of level development of five siphonophore species, strategi- colony-level development in the siphonophores. cally sampled across the siphonophore phylogeny, is described from specimens collected using deep-sea sub- Keywords Major transition in evolution . mersibles and by self-contained underwater breathing Asexual reproduction . Animal colonies . Division of labor . apparatus diving. These species include three cystonects, Functional specialization Bathyphysa sibogae, Rhizophysa filiformis, and Rhizophysa eysenhardti, and two “physonects”, Agalma elegans and Nanomia bijuga.
    [Show full text]
  • 185-220 on the SIPHONOPHORES of the BAY of BENGAL I. MADRAS COAST Zoological Research Labo
    J. Mar. biol Ass. India, 1963, 5 (2): 185-220 ON THE SIPHONOPHORES OF THE BAY OF BENGAL I. MADRAS COAST By R. DANIEL1 AND A. DANIEL1 Zoological Research Laboratory, University of Madras INTRODUCTION ALTHOUGH the study of the siphonophores of the Indian Ocean has received considerable attention (vide Totton, 1954) not much is known on the siphonophores of the Madras Coast. The only available references are (i) a record of three species— Physalia utriculus, Porpita pacifica and Velella sp. off the Krusadi Islands (Sundara Raj, 1927); (ii) a brief reference to Diphyes sp., Porpita pacifica and Physalia utri­ culus (Menon, 1931) ; and (iii) on Diphyes dispar, D. chamissonis, Rhizophysa eysen- hardti, Physalia physalis, Porpita porpita and Velella spirans, obtained off the coast of Madras (Leloup, 1934 b). Hence it was thought desirable to undertake a detailed taxonomic study of this interesting group of animals, which constitute a stable part of the plankton of the Madras waters. The present work is based on the collection of siphonophores made from in­ shore and offshore plankton and from the beach off Madras over a period of six years (1952-54 and 1956-60). The collection includes 29 species. LIST OF SPECIES 1. Porpita porpita (Linne\) 2. Velella velella (Linne\) 3. Physalia physalis (Linne\) 4. Rhizophysa eysenhardti Gegenbaur *5. Agalma okeni Eschscholtz *6. A. elegans (Sars) *6a. Larva Physonectamm Haeckel *7. Stephanomia rubra (Vogt) *7a. Larva of Stephanomia *8. Nanomia bijuga (Delle Chiaje) *9. Forskalia contorta (M. Edwards) *10. Sulculeolaria chuni (Lens & van Reimsdijk) *11. S. turgida (Gegenbaur) *12. S. quadrivalvis Blainville * 13.
    [Show full text]
  • Composición, Abundancia Y Distribución De Los Sifonóforos (Cnidaria: Hydrozoa) En El Domo De Costa Rica, En Febrero Y Marzo De 1979
    Composición, abundancia y distribución de los sifonóforos (Cnidaria: Hydrozoa) en el Domo de Costa Rica, en febrero y marzo de 1979 Ma. Ana Fernández-Álamo1* & Lidia Ramírez-Arriaga1 1. Laboratorio de Invertebrados, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad de México, México; [email protected], [email protected] * Correspondence Recibido 30-I-2019. Corregido 01-VIII-2019. Aceptado 25-X-2019. ABSTRACT. Composition, abundance and distribution of siphonophores (Cnidaria: Hydrozoa) in the Costa Rica Dome, in February and March of 1979. Introduction: Costa Rica Dome is considered as a place with great importance, characterized by an upwelling event with high primary productivity. Siphonophores are predatory organisms that constitute one of the most abundant groups of the zooplankton biomass. Objective: To analyze the specific composition, abundance and distribution of siphonophores from the upwelling region of the central America. Methods: Samples were obtained during the oceanographic campaign DOMO I, which was carried out during February and March of 1979 by the ‘Laboratorio de Oceanografía Física del Instituto de Ciencias del Mar y Limnología de la Universidad Nacional Autónoma de México (UNAM)’. The zooplankton samples were collected with a standard CalCoFI net with 0.3 mm mesh, and then analyzed in the laboratory. Results: A total of 30 species were identified, of which 27 belong to the suborder Calycophorae and three to the suborder Physonectae. Eudoxoides mitra, Muggiaea atlantica, Chelophyes contorta and Lensia hotspur were dominant species. C. contorta was observed with a wide distribution in the study area occupying 85% of the stations. It is followed by Eudoxoides mitra (82%), Agalma okeni (73%), Muggiaea atlántica (64%) and Abylopsis eschscholtzi (61%).
    [Show full text]
  • Evolution, Morphology, and Gene Expression of Functionally Specialized Zooids in Siphonophora
    Evolution, morphology, and gene expression of functionally specialized zooids in Siphonophora Catriona Munro A dissertation submitted to the Graduate School of Brown University. In partial fulfillment of the requirements for the degree of Doctor of Philosophy Providence, RI May 2019 ii Copyright ©Copyright 2019 by Catriona Munro. All rights reserved. iv This dissertation by Catriona Munro is accepted in its present form by the Department of Ecology and Evolutionary Biology as satisfying the dissertation requirement for the degree of Doctor of Philosophy. Casey W. Dunn, Advisor Date Recommended to the Graduate Council Erika Edwards, Reader Date David Rand, Reader Date James Kellner, Reader Date Approved by the Graduate Council Andrew G. Campbell, Dean of the Graduate School Date v vi Curriculum vitae Catriona Munro Education 2013–2019 PhD Ecology and Evolutionary Biology, Brown University Advisor: Casey W. Dunn 2012–2013 MRes Ocean Science, University of Southampton Advisors: Sven Thatje, Chris Hauton 2008–2011 BSc Biology, First Class Honours, University College London Peer-Reviewed Publications Munro C, Siebert S, Zapata F, Howison M, Damian-Serrano A, Church SH, Goetz FE, Pugh PR, Haddock SHD, Dunn CW (2018) Improved phylogenetic resolution within Siphonophora (Cnidaria) with implications for trait evolution. Molecular Phylogenetics and Evolution. 127: 823-833. doi: 10.1016/j.ympev.2018.06.030, bioRxiv preprint: doi:10.1101/251116 Brown, A, Thatje S, Oliphant A, Munro C, Smith KE (2018) Temperature effects on larval development in the lithodid crab Lithodes maja. Journal of Sea Research. 139:73-84. doi: 10.1016/j.seares.2018.06.009 Dunn CW, Zapata F, Munro C, Siebert S, Hejnol A (2018).
    [Show full text]
  • Mediterranean Pelagic Habitat Oceanographic and Biological Processes, an Overview Maurizio Würtz
    Mediterranean Pelagic Habitat Oceanographic and Biological Processes, An Overview Maurizio Würtz INTERNATIONAL UNION FOR CONSERVATION OF NATURE IUCN-MED Parque Tecnológico de Andalucia Marie Curie, 22 29590 - Campanillas (Malaga) [email protected] Tel +34 95 202 84 30 Fax +34 95 202 81 45 www.iucn.org/mediterranean Core support to the IUCN Centre for Mediterranean Cooperation is provided by: Mediterranean Pelagic Habitat Oceanographic and Biological Processes, An Overview ABOUT IUCN IUCN, International Union for Conservation of Nature, helps the world fi nd pragmatic solutions to our most pressing environment and development challenges. IUCN works on biodiversity, climate change, energy, human livelihoods and greening the world economy by supporting scientifi c research, managing fi eld projects all over the world, and bringing governments, NGOs, the UN and companies together to develop policy, laws and best practice. IUCN is the world’s oldest and largest global environmental organization, with more than 1,000 government and NGO members and almost 11,000 volunteer experts in some 160 countries. IUCN’s work is supported by over 1,000 staff in 60 offi ces and hundreds of partners in public, NGO and private sectors around the world. www.iucn.org Mediterranean Pelagic Habitat Oceanographic and Biological Processes, An Overview Maurizio Würtz Dipartimento di Biologia, Università di Genova, ITALY April 2010 1 5 8 2 6 3 4 7 910 Cover pictures: 1 Loggerhead turtle (Caretta caretta). 2 Striped dolphin (Stenella coeruleoalba). 3 Copepod, female of Centropages kroyeri. Photo: Stéphane Gasparini, Laboratoire d’Océanographie de Villefranche. 4 Jewell squid (Histioteuthis reversa). 5 Atlantic, Strait of Gibraltar and Alboran Sea.
    [Show full text]
  • Report of the Joint ICES/CIESM Workshop to Compare Zooplankton Ecology and Methodologies Between the Mediterranean and the North Atlantic (WKZEM)
    ICES WKZEM REPORT 2008 ICES OCEANOGRAPHY COMMITTEE ICES CM 2008/OCC:10 REF. ACOM Report of the Joint ICES/CIESM Workshop to Compare Zooplankton Ecology and Methodologies between the Mediterranean and the North Atlantic (WKZEM) 27-30 October 2008 Heraklion, Crete, Greece International Council for the Exploration of the Sea Conseil International pour l’Exploration de la Mer H. C. Andersens Boulevard 44–46 DK‐1553 Copenhagen V Denmark Telephone (+45) 33 38 67 00 Telefax (+45) 33 93 42 15 www.ices.dk [email protected] Recommended format for purposes of citation: ICES. 2008. Report of the Joint ICES/CIESM Workshop to Compare Zooplankton Ecology and Methodologies between the Mediterranean and the North Atlantic (WKZEM), 27‐30 October 2008, Heraklion, Crete, Greece. ICES CM 2008/OCC:10. 77 pp. For permission to reproduce material from this publication, please apply to the Gen‐ eral Secretary. The document is a report of an Expert Group under the auspices of the International Council for the Exploration of the Sea and does not necessarily represent the views of the Council. © 2008 International Council for the Exploration of the Sea ICES WKZEM REPORT 2008 | i Contents Executive summary ................................................................................................................ 1 1 Background to the Workshop ...................................................................................... 2 2 Objectives ........................................................................................................................ 3
    [Show full text]
  • Seasonal Variability of Gelatinous Zooplankton During an Anomalously Warm Year at Cabo Pulmo National Park, Mexico
    Latin American Journal of Aquatic Research, 48(5): 779-793, 2020 Gelatinous zooplankton of the Gulf of California 779 DOI: 10.3856/vol48-issue5-fulltext-2441 Research Articles Seasonal variability of gelatinous zooplankton during an anomalously warm year at Cabo Pulmo National Park, Mexico Angel Antonio Silveyra-Bustamante1, Jaime Gómez-Gutiérrez1, Eduardo González-Rodríguez2 3 4 5 Carlos Sánchez , Agustín Schiariti & María A. Mendoza-Becerril 1Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, La Paz Baja California Sur, México 2Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE) Unidad La Paz, La Paz, Baja California Sur, México 3Departamento Académico de Ciencias Marinas y Costeras, Universidad Autónoma de Baja California Sur La Paz, Baja California Sur, México 4Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina 5CONACyT, Centro de Investigaciones Biológicas del Noroeste, La Paz, Baja California Sur, México Corresponding author: Jaime Gómez-Gutiérrez ([email protected]) ABSTRACT. The seasonal variability of gelatinous zooplankton (siphonophores, medusae, and thaliaceans) abundance was investigated at Cabo Pulmo National Park (CPNP) from weekly zooplankton samples collected throughout 2014. The Gulf of California had prolonged warming during 2009-2019, with 2014 as the anomalously warm year preceding El Niño 2015-2016 compared to the 2003-2020 SST time series. Gelatinous zooplankton accounted <1% of the entire zooplankton community abundance at CPNP during 2014, suggesting a low influence of predation pressure upon their zooplanktonic and micronekton preys. Siphonophores (57%), thaliaceans (42%), and medusae (1%) were present throughout the year. The abundance of gelatinous zooplankton had a significant negative association with sea surface temperature and a positive association with sea surface chlorophyll-a concentration and velocity and direction of the wind, increasing their abundance during October after the hurricane season.
    [Show full text]
  • Análisis De La Comunidad Del Zooplancton Gelatinoso (Hydrozoa, Ctenophora, Thaliacea) En El Pacífico Central Mexicano, Abril-M
    Revista de Biología Marina y Oceanografía Vol. 50, Nº1: 111-124, abril 2015 DOI 10.4067/S0718-19572015000100009 ARTÍCULO Análisis de la comunidad del zooplancton gelatinoso (Hydrozoa, Ctenophora, Thaliacea) en el Pacífico central mexicano, abril-mayo 2011 Analysis of the gelatinous zooplankton assemblage (Hydrozoa, Ctenophora, Thaliacea) from the central Mexican Pacific, April-May 2011 Edgar Gamero-Mora1, Gerardo Ceballos-Corona1, Rebeca Gasca2 y Alejandro Morales-Blake3 1Laboratorio de Biología Acuática, Universidad Michoacana de San Nicolás de Hidalgo, Av. Francisco J. Mujica S/N, Morelia, Michoacán 58030, México. [email protected] 2El Colegio de la Frontera Sur, Unidad Chetumal, Av. Centenario Km. 5.5, A.P. 424, Chetumal, Quintana Roo 77014, México 3Facultad de Ciencias Marinas, Universidad de Colima, Carretera Manzanillo-Barra de Navidad Km. 19.5, Manzanillo, Colima 28868, México Abstract.- The gelatinous zooplankton, an important functional group in the water column, was studied during April and May 2011 in Mexican waters of the Eastern Tropical Pacific. Zooplankton samples and environmental data were obtained during the MareaR-III cruise on board the R/V ‘El Puma’ (Universidad Nacional Autónoma de México, UNAM). We identified 32 species of gelatinous zooplankton including 25 species of cnidarians (14 medusae, 11 siphonophores), 2 ctenophores and 5 thaliaceans. Up to 14 of these species represent new records for the surveyed area. The medusae Calycopsis simplex, Sphaerocoryne bedoti, Stauridiosarsia baukalion, Lovenella clausa and the siphonophore Sphaeronectes irregularis are recorded for the first time in Mexican waters. High occurrences and/or abundances of the thaliacean Dolioletta gegenbauri, Doliolum nationalis, the medusae Aglaura hemistoma, Liriope tetraphylla, Rhopalonema velatum, Cunina octonaria and the siphonophore Muggiaea atlantica were detected.
    [Show full text]